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#1 |
Swepub
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Karma: 10
Join Date: Dec 2023
Device: iPad
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EPUB reader testing
Hi all
In which EPUB readers would you normally test your EPUB? I guess some of the readers are more commonly used. So far I have tested Apple Books, Kindle previewer and Thorium. Thanks! |
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#2 | |
the rook, bossing Never.
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Karma: 89531599
Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper11
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Bluefire or Aldiko Basic on Android 4.1.x phone with 4.3″ screen.
Lithium or Pocket book on later Androids. A 4.7″ skinny aspect eink A Sony PRS350 5″ Kobo Sage 8″ More people use the Kindle app on iOS than Apple Books. Also Apple Books is really only for ebooks downloaded from Apple, who change the epub a bit. Third party epubs are better read on a real iOS epub app. We only extensively test if a new style is used or different sized images. Quote:
About 95% of English Language bought ebooks are now Kindle format. Kobo uses kepub for direct to device sales and epub for sales downloaded to PC. If it passes epub checks and works on a kobo eink direct from Calibre as epub2 then kepub will be fine. The kepub renderer can do epubs by rename of the file. The kepub is only extra spans. There are many kinds of epub3. A reflowable epub3 with epub2 TOC and no interactive content works for the most platforms/apps. Some kinds of epub3 won't distribute via ebook retailers and only work on a few apps. |
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#3 |
Resident Curmudgeon
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Karma: 134321338
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
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Adobe Digital Edition 2.0.1. Adobe Digital Editions 4.5.12, Kobo Reader both as ePub and KePub, calibre viewer, Pocketbook Reader.
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#4 | |
the rook, bossing Never.
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Karma: 89531599
Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper11
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Quote:
Pocketbook reader? As in Android app (which I use) or the Pocketbook eink models (unusually a Swiss company founded by Ukrainians?). |
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#5 |
Wizard
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Karma: 7043711
Join Date: Mar 2013
Location: Rosario - Santa Fe - Argentina
Device: Kindle 4 NT
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If you want to test the code to maintain joined images and captions, then take for sure that that code won't work on ADE Legacy (2.x) and apps and devices based on it. In that case, you need also to write a fallback code, in case of your epub is being opened by an epub2 ereader.
On epub3, besides the apps and devices named in the previous posts, I also use Reasily, Infinity Reader, Cantook, BookFusion and Kobo for Android. On Linux I use Foliate. On Windows, Thorium, Koodo Reader and IceCream Reader. To test the fallback epub2 code included in my epub3, I use ADE 2.x/3.x and Koreader. And don't use CoolReader, Readera, FBReader to test your epubs because they don't support well the epub protocol. |
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#6 | |
the rook, bossing Never.
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Karma: 89531599
Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper11
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Quote:
Also avoid ereader apps with a lot of tricky to cancel over-rides such as KOReader (handy for fixing slightly broken epubs, needs to be not over-riding anything) or Moon+ |
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#7 |
Resident Curmudgeon
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Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
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The other app that's not ADE on a Pocketbook.
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#8 | |
Resident Curmudgeon
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Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
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#9 |
Resident Curmudgeon
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Join Date: Nov 2006
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Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
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ADE 2.0.1 is excellent for testing if your ePub 3 works well enough as ePub 2.
The thing is, Kobo uses an older RMSDK (I think it's equivalent to ADE 3.x). So it's quite likely that ePub could be read with a program that does not do ePub 3 all that well. |
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#10 | ||
Wizard
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Join Date: Mar 2013
Location: Rosario - Santa Fe - Argentina
Device: Kindle 4 NT
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#11 |
the rook, bossing Never.
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Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper11
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In general the Android and iOS apps from same companies as sell eink ereaders are not the same. I doubt Kobo eink models do readium for kepub and they use an older RMSDK (ADE 3.x?) for epubs. If renamed to use the kepub renderer there is more epub3 support. An actual kepub has extra kobo spans and annotation/highlights fail on a simply renamed epub.
Amazon Android and K4PC (and Fire which is basically Android) will let you have Amazon Kindle ebooks with features that don't work on eink Kindles and can't be bought for them. |
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#12 |
Bibliophagist
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Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos
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For what it's worth the WebKit based renderer used by Kobo for .kepub.epub is based on Readium. Back in the distant past, Kobo used the ACCESS NetFront™ BookReader EPUB Edition engine to render ePub3 files. After ACCESS contributed to Readium development by supplying its NetFront™ BookReader EPUB Edition engine to the Readium project, Kobo switched to using a customized Readium renderer.
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#13 | |
Resident Curmudgeon
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Karma: 134321338
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
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#14 |
Bibliophagist
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Location: Vancouver
Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos
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Perhaps you could contact Kobo's developers and ask them why they made the decisions they did?
As for rendering as badly as before? I tried a sample of 7 people with an epub and kepub (kepub synced from Kobo, epub downloaded from Kobo and sideloaded). The only person who read part of the ebook and noticed any differences between the two versions was myself. The rest either didn't notice or were not bothered by any differences between the two books. |
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#15 | |
Resident Curmudgeon
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Karma: 134321338
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
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